The facts
- S: IP44.
- W: IP67.
Ratings to IEC 60529. The first digit is solids, the second is water: 4 means splashing from any direction, 7 means temporary immersion to one metre.
IP44 vs IP67
The last letter is the weather
A 320P6S and a 320P6W carry the same voltage on the same pins. The S body is splashproof, IP44. The W body is watertight, IP67, with a threaded or bayonet sealing ring and a gasketed cover. Choose by where the connection will live, not by price.
IP44, the S body
A spring-loaded lid on the receptacle and a shrouded plug face. Rain and hose spray from any angle do no harm while the pair is mated or the lid is closed. This is the indoor and sheltered-outdoor body: workshops, plant rooms, loading docks under a canopy, festival power under cover.
IP67, the W body
The mated pair seals with a ring that screws or clips over the connector, and the receptacle cover has its own gasket. Immersion for half an hour at a metre is the test. Marinas, wash-down floors in food plants, quarry and construction power, anything left outdoors on the ground. Almost every four and five wire extension cord we build is on W bodies, because that is where three-phase cords tend to get used.
Mixing them
An S plug enters a W connector and works electrically; the assembly is only as good as its weaker half and rates IP44. The sealing ring on a W connector needs a W plug with the matching shoulder to seal. Order the pair together.
Where the letter sits
Last position of the body code, after the hour: 320P6S, 460C9W. The clock finder reads either and tells you which one you typed.
The cords
Splashproof and watertight cords
Type the code on the body, S or W, and the finder shows what we list on it.